A broadband metal coaxial resonator antenna loaded with dielectric lens. Issue 12 (8th September 2021)

• Record Type: Journal Article
• Authors: Tan, Jing; Chen, Juan; Sang, Xiangyuan; Luo, Man
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 31:Issue 12(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-09-08
• Subjects: broadband antenna -- dielectric lens -- metal coaxial resonator antenna; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.22894
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: A design method of metal coaxial resonator antenna (MCRA) is proposed in this article. According to this method, a broadband MCRA working in high‐order modes is designed. The proposed antenna fuses two frequency bands of different high‐order mode pairs, thus achieving 30% fractional bandwidth. The measured operating frequency band of the antenna is 2.95–4.1 GHz, in which the gain is more than 8.5 dBi. In addition, in order to improve the gain, a low‐profile dielectric lens (DL) is designed. With the DL loaded, the −10 dB S11 band shifts to 3.1–4.1 GHz, and the gain of is more than 11 dBi. A close agreement has been achieved between the measured and simulated results.